[HANASHIR:11496] music quotations

[H & R Shubert <notfranz...>]

I'm putting together a music and meditation program for adult education and 
would like to use Jewish quotations about music and spirituality.  For example, 
I will be using Reb Nachman of Breslovs saying, "The most direct means for 
attaching ourselves to God from this material world is through music and 
song...Even if you can't sing, sing."  There is another one that goes, "He who 
sings prays twice."  I love that one but am not sure who to credit it to -- can 
anyone help?  Do you have any other favourite quotations to share?  My e-mail 
address is below.
Thanks,
Rachelle
notfranz (at) total(dot)net